I've tried both the regular and gold edition trainer.I've tried activating it on the main menu, the main main menu (Where it let's you select modes etc), in-game. I've tried just about anywhere, at any given time.

Simply - Can not find game.

I started to test this after the Save Migration tool patch updated, maybe that's the cause?

Mine was running perfectly until I got to Chapter 6-1, the ship, and bang! Chris's ammo just kept depleting.I activated as normal through admin rights and the voice was as per normal along with the number keys. I'm totally lost with this. Tried reloading the cheat again but no joy.First 5 Chapters were great!